Effect of temperature profiles on Yb3+-doped fiber amplifiers

R. Sanchez-Lara, D. Ceballos-Herrera, J.L. Vazquez-Avila, L. de la Cruz-May, D. Jauregui-Vazquez, H.L. Offerhaus, J.A. Alvarez-Chavez*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)
41 Downloads (Pure)


We present a numerical analysis of the thermal effect of an Yb3+-doped fiber segment subjected to different temperature variation profiles, with the intention of determining the best energy conversion efficiency. The analysis is carried-out using different pump schemes and singular temperature profiles in Yb3+-doped fibers. The study indicates that a temperature distribution, with a concave parabolic profile along the fiber axis, shows higher stability in a fiber amplifier scheme, and it therefore becomes steadier at higher pump power level. Additionally, we find that for a constant temperature profile of 20 °C, the highest energy conversion efficiency occurs with a fiber segment of approximately 1.8 m, while for a constant temperature of 200 °C the maximum conversion occurs for a fiber span approximately 2.31 m. This makes it useful for using it as a sensor, at a temperature in a range of 20 °C to 200 °C. These results can be employed as a tool for optimization in the design of fiber lasers and amplifiers as sensors.

Original languageEnglish
Article number103317
JournalOptical Fiber Technology
Publication statusPublished - Jul 2023


  • Fiber amplifier
  • Optical fiber
  • Rare earth-doped
  • Temperature characteristics
  • Ytterbium
  • UT-Hybrid-D


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